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ZA202301008B - Method and apparatus for deriving an interpolation filter index for a current block - Google Patents

Method and apparatus for deriving an interpolation filter index for a current block

Info

Publication number
ZA202301008B
ZA202301008B ZA2023/01008A ZA202301008A ZA202301008B ZA 202301008 B ZA202301008 B ZA 202301008B ZA 2023/01008 A ZA2023/01008 A ZA 2023/01008A ZA 202301008 A ZA202301008 A ZA 202301008A ZA 202301008 B ZA202301008 B ZA 202301008B
Authority
ZA
South Africa
Prior art keywords
motion information
history
information candidate
interpolation filter
candidate list
Prior art date
Application number
ZA2023/01008A
Inventor
Timofey Mikhailovich Solovyev
Sergey Yurievich Ikonin
Roman Igorevich Chernyak
Alexander Alexandrovich Karabutov
Elena Alexandrovna Alshina
Huanbang Chen
Original Assignee
Huawei Tech Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of ZA202301008B publication Critical patent/ZA202301008B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/513—Processing of motion vectors
    • H04N19/517—Processing of motion vectors by encoding
    • H04N19/52—Processing of motion vectors by encoding by predictive encoding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/523—Motion estimation or motion compensation with sub-pixel accuracy
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • H04N19/82—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

The present disclosure relates to video encoding and decoding, and in particular, a method for inter prediction for a block in a frame of a video signal includes: constructing a history-based motion information candidate list, wherein the list is an ordered list comprising N history-based motion information candidates Hk containing motion information of N preceding blocks preceding the block, wherein each history-based motion information candidate comprises elements: one or more motion vectors (MVs), one or more reference picture indices corresponding to the MVs, and an interpolation filter index; adding one or more history-based motion information candidates from the history-based motion information candidate list into a motion information candidate list for the block; and deriving motion information for the block based on the motion information candidate list. Thus the inheritance of the half-pixel interpolation filter index may be achieved when the history-based motion information candidate list is used, thus appropriative interpolation filter is selected instead of the default one that in turn improves the quality of the prediction signal and the coding efficiency.
ZA2023/01008A 2019-04-19 2023-01-24 Method and apparatus for deriving an interpolation filter index for a current block ZA202301008B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201962836072P 2019-04-19 2019-04-19
US201962845938P 2019-05-10 2019-05-10
US201962909763P 2019-10-02 2019-10-02
US201962909761P 2019-10-02 2019-10-02

Publications (1)

Publication Number Publication Date
ZA202301008B true ZA202301008B (en) 2024-09-25

Family

ID=72837053

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA2023/01008A ZA202301008B (en) 2019-04-19 2023-01-24 Method and apparatus for deriving an interpolation filter index for a current block

Country Status (11)

Country Link
US (2) US11924407B2 (en)
EP (2) EP3954122B1 (en)
JP (2) JP7346589B2 (en)
CN (2) CN113711601A (en)
AU (1) AU2020258987A1 (en)
BR (1) BR112021020984A2 (en)
CA (1) CA3137388A1 (en)
CL (1) CL2021002721A1 (en)
MX (1) MX2021012760A (en)
WO (1) WO2020211870A1 (en)
ZA (1) ZA202301008B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020032531A1 (en) * 2018-08-06 2020-02-13 한국전자통신연구원 Image encoding/decoding method and device, and recording medium storing bitstream
US20220286689A1 (en) * 2019-08-05 2022-09-08 Lg Electronics Inc. Video encoding/decoding method and apparatus using motion information candidate, and method for transmitting bitstream
US20240314319A1 (en) * 2023-03-15 2024-09-19 Tencent America LLC Context-based adaptive binary arithmetic coding (cabac) context modeling with information from temporal neighbors
WO2024245350A1 (en) * 2023-06-02 2024-12-05 Douyin Vision Co., Ltd. Method, apparatus, and medium for video processing

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002349735B2 (en) * 2001-11-29 2009-01-15 Godo Kaisha Ip Bridge 1 Coding distortion removal method, moving picture coding method, moving picture decoding method, and apparatus for realizing the same, program
EP1983759A1 (en) * 2007-04-19 2008-10-22 Matsushita Electric Industrial Co., Ltd. Estimation of separable adaptive interpolation filters for hybrid video coding
CN101790092B (en) * 2010-03-15 2013-02-06 河海大学常州校区 Intelligent Filter Design Method Based on Coding Information of Image Blocks
KR20130098121A (en) * 2012-02-27 2013-09-04 세종대학교산학협력단 Device and method for encoding/decoding image using adaptive interpolation filters
EP3264769A1 (en) * 2016-06-30 2018-01-03 Thomson Licensing Method and apparatus for video coding with automatic motion information refinement
US11044480B2 (en) * 2019-01-24 2021-06-22 Google Llc More accurate 2-tap interpolation filters for video compression
WO2020173477A1 (en) * 2019-02-27 2020-09-03 Beijing Bytedance Network Technology Co., Ltd. Regression-based motion vector field based sub-block motion vector derivation
WO2020200236A1 (en) * 2019-04-01 2020-10-08 Beijing Bytedance Network Technology Co., Ltd. Using interpolation filters for history based motion vector prediction

Also Published As

Publication number Publication date
US20240244181A1 (en) 2024-07-18
EP4518325A2 (en) 2025-03-05
US11924407B2 (en) 2024-03-05
EP3954122B1 (en) 2025-01-22
KR20210149850A (en) 2021-12-09
WO2020211870A1 (en) 2020-10-22
CN113711601A (en) 2021-11-26
CL2021002721A1 (en) 2022-07-01
EP3954122A4 (en) 2022-06-08
JP7346589B2 (en) 2023-09-19
US20220038686A1 (en) 2022-02-03
AU2020258987A1 (en) 2021-11-11
JP2022529705A (en) 2022-06-23
JP2023169226A (en) 2023-11-29
EP3954122A1 (en) 2022-02-16
CA3137388A1 (en) 2020-10-22
CN119766999A (en) 2025-04-04
BR112021020984A2 (en) 2021-12-21
EP3954122C0 (en) 2025-01-22
MX2021012760A (en) 2022-01-25

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